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No. 607,|62. l Patented July l2, |898. W. P. CRARY.

LAMP.

(Application filed Oct. 14, 1897.)

(No Model.)

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LAMP.

SPECIFICATION forming part of Letters Patent No. 607,162, dated July 12,1898.

Application hiled October 14, 1897.

To @ZZ whom, t may cow/cera:

Be it known that l, VILLIAM P. CRARY, a citizen of the United States,residing in Brooklyn, in the county of Kings and State of New York, have invented a certain new and useful Improvement in Lamps, of which the following is a specification.

The invention relates particularly to lamps intended to serve on bicycles and other vehicles; and its object is to provide means for reliably attaching the oil-fount and its connections to the lamp-body and also to lock the wick-raising mechanism and hold the wick at the desired elevation against the tendency to lower due 'to the vibrations and shocks to which the lamp is subjected when the vehicle is in motion.

It consists in producing oppositely arranged vertical slots or notches in the skirt ordepending flange on the body, matching to and receiving the projecting ends of the wickraiser shaft carried by the fount, and a loose collar or ring mounted on the skirt, with liberty to be partially rotated thereon, provided with angular open-ended slots or notches similar to a bayonet-lock, the vertical portions of which register with the vertical notches in the skirt and receive the ends of the wick-raiser shaft when the ring is in one position, and when the latter is partially rotated will receive the ends in the horizontal portions of the angular notches, the fount being held against rotation bythe notches'in the skirt, thus reliably joining the fount to the body, but allowing those parts to be easily separated and reunited when required. The edge of the metal forming the lower boundary of the horizontal portion of each angular notch is slightly inclined, so that as the ring is turned in joining the fount to the body this edge engages beneath the shaft end and draws the parts into close relationship and at the same time locks the shaft frictionally against turning in either direction, thus insuring that the wick shall remain in the position in which it is placed. The angularity of the inclined edge is so slight that the vibrations of the vehicle will not loosen the connection, and in order to further guard against such accident it is preferable to form a series of shallow notches or slight indentations upon this edge, in which the wicksemi No. 655,102. (No model.)

raiser shaft will engage sufficiently to hold it until forcibly released.

The operation of removing and replacing the fount and locking the wick is easily and quickly performed, and by simply slacking the ring the shaft is released sufficiently to allow the wick to be rraised or lowered when necessary and again secured without separating the parts. y

The accompanying drawings form a part of this specification, and represent what I consider the best means of carrying'out the invention.

Figure l is a side elevation showing a bicycle-lamp constructed in accordance with my invention. The upper portion of the body is indicated in dotted lines. Fig. 2 is a corresponding rear elevation. Fig. 3 is a horizontal section taken on the line 3 3 in Fig. l, certain portions being shown in plan View. Fig. 4L is a vertical section through the skirt and ring. Fig. 5 is a plan or top view of the ring alone, and Fig. G is a corresponding elevation. O

Similar letters of reference indicate the same parts in all the figures.

A is the body of a bicycle-lamp, which may be of any approved construction and material, equipped with inlet-passages for air, lightin g-orifices,and any ordinary orpreferred bracket (not shown) for attachment to the frame of the bicycle. Extending downward from below and surrounding an orifice opening into the body is a flared flange A', the lower portion or skirt A2 of which is cylindrical, of less diameter than the shoulder or I offset a at its junction with the flared portion, and provided with two vertical notches a, opening downward and arranged oppositely on a line passing near the center.

' B is a ring or short section of a cylinder of larger diameter than the skirt, mounted upon the latter and free to turn thereon between the shoulder a and a circular pocket formed by the npturned lower edge a2 of the skirt, serving to hold the ring in place. The pocket is cut away at the rear to provide space for the lug B to swing as it is forced in one direction or the other in rotating the ring. The latter is also provided with a vertical notch b on each side, arranged to register with the adjacent notch a when the lug B is swung to IOO the proper point. Each notch b is continued horizontally to form the slot D', and the edge B2 of the metal forming the lower boundary of this portion of the notch is inclined upward on a slight angle, as shown.

C is the oil-fount, having a cylindrical upper portion C', matching to and received within the skirt A2 and carrying the wick-tube C2 and wick-raiser shaft C2, the projecting ends of which overhang at each side and are equipped with the heads CAL and also with the usual toothed wheel (not shown) engaging the wick.

The vertical notches in the skirt and ring are produced at points to correspond to the ends of the shaft CS and receive them when the fount is properly presented from below and thrust upward as far as it will go. While the parts are in this relation pressure is applied to the lug B', and the ring B is thereby turned in the direction to engage the shaft ends in the slots b', and thus connect the fount to the body by a joining similar to an ordinary bayonet-lock, but differing therefrom in that the two parts to be joined do not turn relatively to each other, that function being performed by a third member-the ring.

The inclined edges B2 raise the shaft, and thus force the parts strongly together, and the friction thus produced under strong pressure on the lug I3 is sufficient to insure the parts against separation and also to hold the shaft, and thereby prevent the jarring down of the wick by the vibration of the vehicle. In order to further guard against accidental loosening of the parts by the tendency of the ring to move gradually in the reverse direction, I produce a number of Asmall indentations or notches b2 in the upper face of the edge B2, serving to receive the lower face of the shaft when the ring is turned as far as is necessary and offer sufiicient resistance to neutralize the inclination of the ring to move backward under the shocks and jars of the vehicle, but not great enough to offer any serious obstacle to the partial rotation of the ring under the pressure of the finger or thumb on the lug B.

By slightly loosening the parts the shaft may be turned in adjusting the wick and again tightened without separating the fount from the body, and to effect such separation it is only necessary to turn the ring until the notches a and Z) are in register and the hold on the shaft thus lost. To facilitate such register, the cut-away portion of the upturned edge a2 is so located relatively to the notch a that the boundary in one direction serves as a stop a3, against which the lug B strikes, and further movement arrested when the notches a and b coincide.

Although I have described the invention as applied to a lamp designed for use on a bicycle or other vehicle it will be understood that it will serve on lamps and lanterns for other uses.

The indentations b2 may be omitted if the angle of inclination of the edge B2 be so near the horizontal that the friction is sufficient to hold the parts against displacement. I prefer the whole as shown.

I claiml. Ina bicycle-lamp, the body, a skirt de* pending therefrom receiving the upper portion of the fount and having oppositely-arranged notches, a ring carried by the skirt with liberty to turn thereon and having oppositely-arranged angular notches the vertical portions of which are adapted to register with the notches in said skirt, in combination with said fount and the burner and wickraiser shaft thereof, the overhung ends of the latter adapted to be received in said notches and hold said fount to said body by the engagement of said ends in the horizontal portions of said angular notches when the ring is turned, all substantially as and for the purposes herein specified.

2. In a bicycle-lamp, the body, the skirt depending therefrom receiving the upper portion of the fount and having oppositely-arranged notches extending upward from the lower edge, and a ring carried by the skirt with liberty to turn thereon and having oppositely-arranged angular notches the vertical portions of which are adapted to register with the notches in said skirt, and the longitudinal portions having upwardly-inclined lower boundaries, in combination with said fount and the burner and wick-raiser shaft thereof, the overhung ends of the latter adapted to be received in said notches and to draw the fount into close relation with the body by the engagement of said ends by the said inclined boundaries, performing the double function of holding the .parts together and preventing accidental turning of said shaft, all substantially as herein specified.

3. The body A, and skirt A2 having the notches ct, offset a and upturned edge a2forming a pocket, the ring B carried by the skirt between said offset and pocket and free to turn thereon, having the lug B and notches b and b', the lower boundaries of the latter being upwardly inclined, in combination with the fount O, cylindrical portion C received in said skirt, the burner and wick-raiser shaft C2 carried by the fount, the overhung ends of said shaft adapted to be received in said notches and hold the fount to the body by the turning of said ring, all substantially as and for the purposes herein specified.

1i. The body A, and skirt A2 having the notches a, offset a and upturned edge a2 form ing a pocket, the ring B carried by the skirt between said offset and pocket and free to turn thereon, having the lug B and notches ZJ and b', the lower boundaries of the latter bcing upwardly inclined and having the indenta tions b2, in combination with the fount C, cylindrical portion Creceived in said skirt, the burner and wick-raiser shaft C3 carried by the fount, the overhung ends of said shaft adapted to be received in said notches and hold the fount to the body by the turning of said ring,

IOO

IIO

the parts being drawn together and locked by the action of said inclined boundaries and their indentations, all substantially as and for the purposes herein specified.

5. The body A, skirt A2having the offset a and Vertical notches a, the upturned edge a2 forming a pocket, the ring B carried by the skirt with liberty to turn thereon, having J[he angular notches comprising the Vertical portions b and horizontal portions b', the lug B lying in a cut-away recess in said pocket, one boundary forming a stop a3 for said lug to arrest the motion of the ring when the said Vertical notches d and b are in register, in

IVILLIAM I). CRARY.

Vitnesses:

C. A. HAUCK, CHARLES R. SEARLE. 

